In my experience, 9 times out of 10, the crank components are not the failure point on the crank. If they are not put together properly and true, that causes failure. The other component to a crank failure is the bearings. Andy at M&M will build it and true it correctly and put good bearings on it. I won't hesitate for one second to run one of those cranks in the topends he has listed. Just my two cent and sure a bunch of others will agree.